---
title: "Updates an envelope attachment in a draft or in-process envelope."
method: PUT
path: "/v2.1/accounts/{accountId}/envelopes/{envelopeId}/attachments/{attachmentId}"
tags: ["EnvelopeAttachments"]
---

# Updates an envelope attachment in a draft or in-process envelope.

`PUT /v2.1/accounts/{accountId}/envelopes/{envelopeId}/attachments/{attachmentId}`

## Request

- Base URL: `https://www.docusign.net/restapi`
- URL: `https://www.docusign.net/restapi/v2.1/accounts/{accountId}/envelopes/{envelopeId}/attachments/{attachmentId}`
- Auth: none declared

Updates an envelope attachment to a draft or in-process envelope.

<!-- std notice DEVDOCS-114911 -->
<ds-inlinemessage kind="information" markdown="1">

It's easy to confuse envelope attachments,
which are developer-only files associated with an envelope,
with signer attachments.

To learn about the different types of attachments, see [Attachments](/docs/esign-rest-api/esign101/concepts/documents/attachments/) in the concept guide.

</ds-inlinemessage>
<!-- end notice DEVDOCS-114911 -->

## Path parameters

- `accountId` string, required
- `attachmentId` string, required
- `envelopeId` string, required

## Request body

- Attachment: Contains information about an attachment.
  - `accessControl` string: Valid values are `sender` and `senderAndAllRecipients`.
  - `attachmentId` string: The unique identifier for the attachment.
  - `attachmentType` string: Specifies the type of the attachment for the recipient.
  - `data` string: A Base64-encoded representation of the attachment that is used to upload and download the file. File attachments may be up to 50 MB in size.
  - `label` string: A label for the attachment. Potential values include: - `guidedForm`: [Guided forms](https://www.docusign.com/products/guided-forms) provide a step-by-step, mobile-ready experience to help signers easily complete long or complex forms. - `eventNotifications`: A list of envelope-level event statuses that trigger Connect to send updates to the endpoint specified in the `url` property.
  - `name` string: The name of the attachment.
  - `remoteUrl` string: The URL of a previously staged chunked upload. Using a chunked upload enables you to stage a large, chunkable temp file. You then use the `remoteUrl` property to reference the chunked upload as the content in attachment and document-related requests. The `remoteUrl` property cannot be used for downloads.

## Response `200`

Successful response.

## Other responses

- `400`: Error encountered.

---

[API](https://skmtc.dev/docusign/apis/docusign-esignature-rest-api.md) - [All operations](https://skmtc.dev/docusign/apis/docusign-esignature-rest-api/llms.txt) - [OpenAPI document](https://skmtc.dev/docusign/apis/docusign-esignature-rest-api/revisions/77f1998c313d?raw)